What is the article about why sea water is blue?

Do you know why the sea is blue?

B: Why?

Because there are fish in the sea.

Why is the sea with fish blue?

A: Because fish spit bubbles.

B: Why is the sea blue when fish spit bubbles?

A: Because it is blue, it is blue.

Or a short story in a primary school text.

13 Why is the sea blue?

192 1 year, the blue waters of the Mediterranean Sea.

An Indian scientist, màn, gave a research report on acoustics and optics at the Royal Society, and then returned home by boat via the Mediterranean Sea. The sun is warm, the warm wind is slow, and the fish scales are shining on the deep blue sea. Among the people walking on the deck, a conversation between an Indian mother and son caught Raman's attention.

"Mom, what's the name of this sea?"

"Teaching in the field!"

"Why is it called the Mediterranean?"

"Because it is sandwiched between Eurasia and Africa."

"Then why is it blue?"

The young mother was speechless for a moment, and her eyes for help happened to meet Raman who was listening to their conversation with great interest. Raman told the boy, "The sea is blue because it reflects the color of the sky."

Before that, almost everyone agreed with this explanation. It comes from the British physicist Rayleigh. This great scientist, who is famous for his discovery of inert gases, used the theory that sunlight was scattered by atmospheric molecules to explain the color of the sky, and concluded that the blue color of seawater was produced by reflecting the color of the sky.

But somehow, after bidding farewell to the mother and son, Raman suddenly had doubts about his explanation. That curious child, those big eyes for knowledge, and those "why" that keep emerging make Raman feel deeply guilty. As a scientist, he found himself unconsciously losing the boy's curiosity to pursue the unknown in the "known", and his heart could not help shaking.

Losing curiosity is the biggest taboo of scientific discovery and invention. Even successful scientists will turn a blind eye and stop.

After Raman returned to India, he immediately set out to study why the sea water is blue. First of all, he found that the experimental evidence explained by Rayleigh was insufficient and unconvincing; Then, starting with the interaction between light scattering and water molecules, he conducted in-depth research. Finally, he used the fluctuation theory of Einstein and others to obtain sufficient data of light scattering when passing through clear water, ice cubes and other substances, and proved that the principle that water molecules scatter light to make seawater appear blue is exactly the same as that that that atmospheric molecules scatter sunlight to make the sky appear blue. That is to say, the sea looks blue, not because it reflects the blue of the sky, but because it scatters sunlight. Later, Raman discovered the ubiquitous light scattering effect in solid, liquid (yè) and gas respectively. The light scattering effect he discovered, called "Raman effect", provided strong evidence for the scientific community to finally accept the particle theory of light at the beginning of the 20th century.

1930, the question mark of the boy on the Mediterranean ship led Raman to the podium of the Nobel Prize in Physics, making him the first scientist to win this honor in the history of India and Asia.

The story of the boy with endless questions constantly reminds people that they should never give up their curiosity about the "known". Maybe new discoveries are in the "known" and "unknown".